Lubrication apparatus



Jamal, 1941.` ,CK N N 2,229,054.y

' Lunrcn'uou Prunus Fuga Aug. 1, .193s

To PREssRl-z TANK l l5 N T T INVENToR 2 BURNS Dic; K

ZQW

Patented Jan. 2l, 1941 V UNITED STATES PATENT ori-flog e f 2129.054" `LUnnlcA'rroN ArrAaA'rUs i Dick, Fergnson,.Mo., assigner to Wagner Electric'Corpox-ation, St. LoniltMo., a corpora.`

Vtion ofDelawal'c y Application August 1, 193s, serial No. 222390 l, f

` vom. (cmu-105) vide means for insuringl that'an accessoryassociated with an engine will .be properly filled with lubricant each time "the engine is replenished with the lubricant. i

l Another object of my invention isto sofasso:

ciatethe lubricant iiller opening of an `oil dome of a compressor with the lubricant filler'condnit on an engine that the oil dome wlllibe nlledwith lubricant veach timelubricant is placed inthe Other objects Lof invention will become api parent from the Iollowingdescription taken in `connection withthe f accompanying drawing in which Figure l isy a view, partly in section. ora compressor and an oil llerconduit of anenfinc showing structureassociated therewith and em-` bodying myinventionrand Figure 4ills across-v sectional .view takenon the linelof Figure l.

Referring to the figuresiin detail, numeral I- indicates an internalicombustion engine having a crank-case `2 for containing lubricant in the form of oil for lubricating the'moving parts of the engine in a well-known manner. The crank-` 1 case is provided with-a illled conduit l and asso- .30 ciated therewithvistheusual dip sticlr 4to de 'termine the level 5 of the oil in thecrank-case.

The engine in the particular vembodiment shown 4 has mounted thereon a rotary compressor i of well-known construction, the rotor (not shown) of which is belt driven from the englneby the] pulley. The compressor has associated therewith an oildome ifor carrying the oil for lubri. cating the rotor and `.otherl` moving parts of the compressor. Air is admitted to the inlet of the c compressor through the alrcleaner l and after i being compressed `is forced into the oil dome through the outlet l0 provided with a check valve II. From the oil ldome the compressed air can pass through the check valve l2 and into conduit I3 leading to the pressure tank where it may be used to operate any device desirable.

'Ihe oil in the oil dome should always be maintainedeat or near acertain level in order to ini. sure thatrthe compressor will be` properly lubricated- -`l It is very common for vehicle operators to neglect to check the oil dome oil or to add oil whenfneeded. `Thus if nospecial means not requiring special attention by the vehicle operator is employed to insure that the oil dome level will '65 be kept at the proper height, it may readily happen that the oill in the oil dome will become exhausted or nearly so, thereby causing damage to the compressor.` c l i In accordance with my, invention, the ller opening for the oil dome is so associated with the 5 `conduit vfor. filling the engine i crank-case that thev oil level inthe oil dome will be brought up to the proper levelreachtime oil is poured into thevc'rank-case. Inrthe construction shown the oil dome I islprovided with an integral portion 10 Il Iitted onto the illler conduit 3 and having a vertical passage I 5 communicating with said ller conduit. The portion .M is also provided with a horizontal passage `Iucommunicating with the oil dome, at the proper oil level for. the oil in said l5 dome and having a mouth I1 for placing the passage illn communication with passage` I5. The mouth I1 is threaded and positioned at the top of aledge extending into passage I5. Within the passage ISand spaced above the mouth l1 is a. 20 funnel member I8 for directing oil into the mouth and passage I6. .The `passage I6 is adapted to be closed fluid-tight by a plug I9`having a threaded. end 2l for cooperation with the threaded mouth, and a shoulder 2| for. 1fluid-tight sealing 2; engagement with the portion of the surface volf theledge surrounding the mouth. The plug I9 carries a cap `22 for covering the upper open-end of passage I5, this cap being spaced slightly from the end ofthe passage whemthev plug` is in posi- 30 tion Vto `close passage Iin lorderthat Vair mayv i freelypass in and out of the crank-case. The cap isprovided'with Vnger projections 23 for" screwing `up and unscrewing the plug.

In operatioru` whenever oil is placed in the 35 crankfcase. the cap must be removed which also requires that'thev plug I8 be removed to thereby open passage I6. The rs't oil that is now poured c into passage lI5 will be directed into mouth I1 by thefunnel 'member Ij'and thus pass into the o oil dome through passage I6. When the level of the oil in the dome reaches the height of passage I as indicated at 24, no more oil will enter the dome and the remainder will flow down the passage I5 and conduit l into the crank-case. 45 When the cap is replaced and plug I8 screwed up, the dome will again be sealed fluid-tight to hold the compressed air.

It is thus seen that each time oil is poured into the crank-case. the oil level in the compressor 5o oil dome will again be brought to the proper level it lt is below this level. Thus there is no danger of the vehicle operator forgetting to add oil to the compressor and thereby causing damage thereto. Since the engine oil is checked periodically and the compressor does not use an excessive amount of oil, therewill be no danger of the compressor having insuiiicient lubricant.

Being fully aware of the possibility of modifications in the particular structure hereindescribed without departing from the fundamental principles of my invention, I do not intend that its scope b limited except as set forth by the appended claims.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In apparatus of the class described, a chamA` ber for containing lubricant, a mechanism having moving parts, a lubricantv containing chamber associated with the mechanism for furnishing lubricant thereto', a conduit leading to the first named chamber, a conduit having one end communicating with the second named chamber and its other end so communicating with the ilrst named conduit at a point below the point where lubricant enters said conduit when being supplied to the rst chamber that at least a portion of the lubricant will flow into the end of the second conduit and be conducted to the second chamber, a cover for the'open end of the rst conduit, and means secured to the cover and extending'into therst conduit for closing-the second conduit,v said means supporting the cover in spaced relation to the open end of the first conduit.

2. In combination, an engine having a crankcase, a conduit for conducting oil to the crankcase, a mechanism mounted adjacent the engine and having an oil reservoir containing oil under a relative high pressure when the mechanism is operating, a conduit communicating with the oil reservoir and having an end opening upwardly and so positioned in the crank-case conduit below the point where oil `enters said conduit when being supplied tov the crank-case that at least a portion of the oil will enter the open end of the reservoir conduit and be conducted to the reservoir, and removable means extending intoL the crank-case conduit and secure to thereservoir conduit for preventing fluid under pressure in the oil reservoir from 'being said latter conduit.

forced "out throughY 3. In combination, an 'engine having'a crankconduit for sealing the oil. dome conduit against,

', having a; threaded open ,end so associated with the crank-case conduit at a point below the mouth thereof that a portion of the oil poured into the crank case conduit willow into and through the chamber conduit and fill said chamber to the height of the conduit, and a threaded plug cooperating with the threaded open'end for producing a Huid-tight seal for the oil dome conduit, said plug having a portion extending above the mouth of the crank-case conduit adapted to be grasped by the hand to turn the plug.

5. In combination, an engine having a crankcase, a conduit for conducting oil to the crankcase, a compressor mounted adjacent the engine and having an oil dome, a conduit communicating with the oil dome and having a mouth positioned in the crank-case conduit below the mouth ofthe latter and opening upwardly, anda funnel associated with the crank-case conduit and positioned above the mouthof the oil dome conduit y for guiding all the oil poured into the crank-case conduit toward said mouth.

6. In combination, an engine having a crankcase, aconduit for conducting oil to the crankcase, a compressor mounted adjacent the .engine and having an oil dome, a conduit communicating with the oil dome and having a mouth positioned in the crank-case conduit and opening upwardly, a funnel associated with the crankcase conduit above the mouth `of the oil dome conduit for guiding oil into said mouth, a cover for the crank-case conduit, anda member secured to the cover and cooperating with said mouth of the oil dome conduit for closing it fluidtight, said cover being supported by said member and spacedfrom the top ofthe crank-case conduit when the member is in closed-position.

7. In combination, an engine having a crankcase, a pipe for conducting oil to the crank-case, a compressor mounted adjacent the engine and having an oil dome, a member carried by the oil.

dome and having averticalgpassage therethrough adapted to be connected to :the top of the crankcase pipe, saidmember being formed with an integral projection extending laterally into the passage at a point below the upper end thereof, means forming a passage in -said member and communicating with the oil dome and with the vertical passage at the top of said projection, and means for closing the oil dome passage.

BURNS DICK. 

